Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 54612 | 26 March 2020 01:15:00 | On 3/25/2020, SONGS (San Onofre Nuclear Generating Station) made required formal notifications to the California Office of Emergency Services at 2107 PDT, the San Diego Regional Water Quality Review Board at 2123 PDT, the San Diego Department of Environmental Health (CUPA) (Certified Unified Program Agency) at 2104 PDT, the National Response Center (NRC) at 2115 PDT, and the San Diego Coast Guard at 2149 PDT, concerning an approximate 7,000 gallon release of partially treated sewage to the Pacific Ocean. Both Sewage Treatment Plant effluent pumps were shut down and a state certified vendor is working to bring the treatment plant back to service. |
| ENS 52252 | 19 September 2016 18:17:00 | At 1230 (PDT) on 9/19/16, SONGS (San Onofre Nuclear Generating Station) made an offsite notification to the San Diego Regional Water Quality Control Board in regards to an oily waste water release to the environment in excess of allowable limits. On 9/15/16, the Unit 3 oily waste sump overflowed. An estimated 1500 gallons was released to the intake which is pumped to the outfall. A sample was taken during the end of the overflow; no visual indication of oil and grease was noted. The sample analysis completed on 9/19/16 indicated a result that exceeded SONGS' NPDES (National Pollutant Discharge Elimination System) instantaneous maximum limit of 20 ppm; results were 34.4 ppm. The licensee will inform NRC Region IV staff. |
| ENS 52047 | 27 June 2016 22:14:00 | A non-licensed contract employee had a confirmed positive for alcohol following a for-cause fitness-for-duty test. The employee's access to the plant has been terminated. This information will be sent to the NRC Region 4 Office as San Onofre no longer has a resident.
In the event report, the individual was described as a contract supervisor, thus meeting the reporting threshold. (the violation of the FFD policy was that he failed a for-cause test for alcohol). Recently, an NRC review of SONGS' 2016 Annual Fitness for Duty report found that SONGS described that test failure as 'not reportable' and that the labor category was 'Maintenance (Craft).' After reviewing the data, Access Authorization confirmed that the individual was a Union Maintenance Foreman (not a supervisor). The event was not reportable." SONGS will be notifying NRC Region 4. Notified R4DO (O'KEEFE) and FFD E-mail Group. |
| ENS 47252 | 8 September 2011 19:08:00 | On September 8, 2011 at 1538 PDT, the San Onofre Units 2 and 3 reactors tripped due to a grid disturbance. All control rods fully inserted. The EFAS (Emergency Feed Actuation System) initiated as expected for a reactor trip. Steam generators are being fed by the main feedwater system and decay heat is being removed through the steam bypass system to the main condensers. There is no primary to secondary leakage and no safety relief valves lifted. Site electrical power sources are being fed from off-site power and both units are in a normal shutdown configuration. The emergency diesel-generators are in standby/operable status and were not required during the event. Both units are stable (NOT/NOP) and in Mode 3. The reactor trip response is considered uncomplicated. The licensee has notified the NRC Resident Inspector. |